I have one of the 65 watt version. I put a dimmer on it because I found it too bright. The points on the fingers of the leaves start turning up along the edge and then it will start yellowing. Keep an out for this and consider raising the light if you see it.
is what I bought. It does chop the signal but I guess it’s okay and the driver can handle it. I did check iirc. In a picture it actually shows bars sometimes.
used one of these to set the lux was the cheapest way to set it without expensive equipment I didn’t have. Not the best way to do it but it has worked for me.
sounds about right. both @Mr.Sparkle and MotR reported that led lighting was sufficient to flower at much lower levels. My light is screwed to the top of the cabinet. It is what it is. As long as they were in a dome they were fine but when I went to gallon bags they were too close. In my short cabinet they did okay in 4 in pots.
I don’t have a lot of headroom in that cabinet. But in the other one I have 2 of the new rspec lamps. Same thing if the points on the edges point at the cieling …too much light.